@article{DBLP:journals/ior/SelvarajahS09,
  author    = {Esaignani Selvarajah and
               George Steiner},
  title     = {Approximation Algorithms for the Supplier's Supply Chain
               Scheduling Problem to Minimize Delivery and Inventory Holding
               Costs},
  journal   = {Operations Research},
  volume    = {57},
  number    = {2},
  year      = {2009},
  pages     = {426-438},
  ee        = {http://dx.doi.org/10.1287/opre.1080.0622},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}